Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.

A 7-planet alignment will be visible in the skies Friday, weather permitting. Here's what to know and how to see the planetary alignment.

While the weather might be tough for seeing it tonight, there's a chance to see a 7-planet alignment in the skies tonight in Massachusetts. Supposedly, this will be the last such alignment of planets ...